LM3881是TI公司的一款无产品，LM3881是电源序列发生器，本页介绍了LM3881的产品说明、应用、特性等，并给出了与LM3881相关的TI元器件型号供参考。
LM3881 - 电源序列发生器 - 无 - 序列发生器 - TI公司（Texas Instruments，德州仪器）
- Easiest Method to Sequence Rails
- Power-Up and Power-Down Control
- Tiny Footprint
- Low Quiescent Current of 80 µA
- Input Voltage Range of 2.7 V to 5.5 V
- Output Invert Feature
- Timing Controlled by Small Value External Capacitor
- Security Cameras
- Servers
- Networking Elements
- FPGA Sequencing
- Microprocessor and Microcontroller Sequencing
- Multiple Supply Sequencing
The LM3881 Simple Power Sequencer offers the easiest method to control power up and power down of multiple power supplies (switching or linear regulators). By staggering the start-up sequence, it is possible to avoid latch conditions or large inrush currents that can affect the reliability of the system.
Available in VSSOP-8 package, the Simple Sequencer contains a precision enable pin and three open-drain output flags. When the LM3881 is enabled, the three output flags will sequentially release, after individual time delays, thus permitting the connected power supplies to start up. The output flags will follow a reverse sequence during power down to avoid latch conditions. Time delays are defined using an external capacitor and the output flag states can be inverted by the user.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LM3881 | VSSOP (8) | 3.00 mm x 3.00 mm |
